Issue |
A&A
Volume 366, Number 1, January IV 2001
|
|
---|---|---|
Page(s) | 166 - 173 | |
Section | Interstellar and circumstellar matter | |
DOI | https://doi.org/10.1051/0004-6361:20000219 | |
Published online | 15 January 2001 |
Nonradial nonadiabatic stellar pulsations: A numerical method and its application to a β Cephei model
Institut d'Astrophysique et de Géophysique de l'Université de Liège, avenue de Cointe 5, 4000 Liège, Belgium
Corresponding author: M. A. Dupret, dupret@astro.ulg.ac.be
Received:
25
February
2000
Accepted:
7
November
2000
A new general method for the computation
of nonradial nonadiabatic oscillations of a given stellar model is
presented for a linear approximation.
A simple and useful modelling of the atmosphere is included,
allowing to obtain credible values for the eigenfunctions
in the atmosphere.
Some of the results obtained for a
model are shown as an illustration.
Our study opens the way to different applications.
Better theoretical line-profile variations
could be obtained from our method, allowing a more detailed
comparison with observations.
More generally, our study is relevant for asteroseismology,
giving a way for a better knowledge of stellar interiors.
Key words: stars: interiors / stars: oscillations
© ESO, 2001
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